A straw supporting device and a straw blocking-preventing swather using the same

Abstract

The utility model relates to a kind of straw supporting devices, including upper layer cover, lower layer cover, connecting seat, first support, second support and at least one straw supporting wheel, the connecting seat is sleeved in the front end of upper layer cover and lower layer cover, and connecting seat is fixedly connected between upper layer cover and lower layer cover, the first support and the second support are all set between upper layer cover and lower layer cover, and the lower side of upper layer cover and lower layer cover is all installed and set with straw supporting wheel or only with straw supporting wheel below upper layer cover, the rear side wall of upper layer cover and lower layer cover is set as the inclined plane that is inclined to front, by the rear side wall of upper layer cover and lower layer cover is set as the inclined plane that is inclined to front 15 ° to 30 °, and the inclined opening formed between header and inclined plane expands from inside to outside, so as to enlarge the cross-sectional area of discharge passage, and can reduce the situation that grass clippings and stalk block the gap between header and straw supporting device, improve the smoothness of discharging.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and facilities technology, specifically to a crop lifter and a harvester that is less prone to clogging when using the crop lifter. Background Technology

[0002] Harvesters come in self-propelled, tractor-trailer, and suspended types. Their working parts consist of a header with a cutter, a reel, and a conveyor belt. The crop lifter is a common agricultural machinery accessory in mechanized agricultural operations. Its core function is to support and guide the crop stalks, helping them maintain a specific posture to ensure efficient harvesting.

[0003] Traditional crop lifters typically have a flat rear wall for the cover plate. When cutting crop, grass clippings and stalks easily bounce into the gap between the cover plate and the cutter head under the influence of high-speed airflow and mechanical vibration. Because the gap is narrow and lacks a guiding structure, the grass clippings and stalks gradually accumulate and form a blockage, requiring frequent shutdowns for cleaning, thus reducing operational efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This utility model provides a grass lifter and a cutter that is less prone to grass blockage when using the grass lifter. It solves the problem that the narrow gap between the grass lifter and the cutter head and the lack of a guiding structure cause grass clippings and stems to gradually accumulate and form blockages, thus requiring frequent machine stops for cleaning and reducing work efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rice lifter, comprising an upper cover plate, a lower cover plate, a connecting seat, a first support, a second support, and at least one rice lifter wheel. The connecting seat is sleeved on the front end of the upper cover plate and the lower cover plate, and is fixedly connected to the upper cover plate and the lower cover plate. The first support and the second support are both disposed between the upper cover plate and the lower cover plate, and the top and bottom of the first support are respectively connected and fixed to the middle section of the upper cover plate and the middle section of the lower cover plate by fasteners. The top and bottom of the second support are respectively connected and fixed to the rear section of the upper cover plate and the rear section of the lower cover plate by fasteners. Rice lifter wheels are installed below both the upper cover plate and the lower cover plate, or only below the upper cover plate. The rear sidewalls of the upper cover plate and the lower cover plate are configured as forward-inclined slopes.

[0008] Preferably, the angle at which the inclined plane tilts forward is set to 15° to 30°.

[0009] In a further preferred embodiment, the height of the first support is less than the height of the second support.

[0010] In a further preferred embodiment, both the outer surfaces of the upper cover plate and the lower cover plate are coated with an anti-rust coating.

[0011] This utility model also provides the following technical solution: a grass cutter that is not prone to clogging, comprising a vehicle body and a cutting platform installed in front of the vehicle body, characterized in that it further comprises the aforementioned grass lifter, wherein the grass lifter is installed at the outer edge in front of the cutting platform, and an inclined opening is formed between the inclined surface and the cutting platform.

[0012] Preferably, the inclined opening expands from the inside out.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a straw lifter and a cutter / dryer that is less prone to straw clogging when using the straw lifter, which has the following beneficial effects:

[0015] In this invention, the rear sidewalls of the upper and lower cover plates are set as inclined surfaces tilted forward at 15° to 30°, and the inclined opening formed between the cutter and the inclined surface expands from the inside out, thereby increasing the cross-sectional area of ​​the discharge channel and reducing the blockage of grass clippings and stems between the cutter and the feeder, thus improving the smoothness of grass discharge. Attached Figure Description

[0016] Figure 1 A top view of a stalking machine in the prior art.

[0017] Figure 2 This is a schematic diagram of the structure of a rice harvester in the prior art;

[0018] Figure 3 This is a schematic diagram of the structure of the rice harvester according to an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of a harvester installed at the header according to an embodiment of this application.

[0020] In the diagram: 10, upper cover plate; 20, lower cover plate; 30, connecting seat; 40, first support; 50, second support; 60, reel; 70, inclined plane; 80, cutting table; 90, vehicle body. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 2 A common rice lifter includes an upper cover plate 10, a lower cover plate 20, a connecting seat 30, a first support 40, a second support 50, and at least one lifting wheel 60 (two are shown in the illustration). The connecting seat 30 is sleeved on the front end of the upper cover plate 10 and the lower cover plate 20, and is fixedly connected to the upper cover plate 10 and the lower cover plate 20. The first support 40 and the second support 50 are both disposed between the upper cover plate 10 and the lower cover plate 20, and the top and bottom of the first support 40 are respectively connected and fixed to the middle section of the upper cover plate 10 and the middle section of the lower cover plate 20 by fasteners. The top and bottom of the second support 50 are respectively connected and fixed to the rear section of the upper cover plate 10 and the rear section of the lower cover plate 20 by fasteners. This structure allows for a three-section fixed structure between the upper cover plate 10 and the lower cover plate 20, which can improve the torsional stiffness of the rice lifter and adapt to high-speed operation. A lifting wheel 60 can be installed under both the upper cover plate 10 and the lower cover plate 20, or the lifting wheel 60 can be installed only under the upper cover plate 10. The lifting wheel 60 can be a lifting wheel directly driven by a hydraulic motor or an electric motor, which is commonly used in the prior art. The lifting wheel 60 can be a chain / belt finger-type lifting wheel or a star wheel type lifting wheel (the figure shows a star wheel type lifting wheel), which will not be described in detail here.

[0023] Please see Figure 1 A typical harvester includes a body 90, a header 80, and several crop lifters. The body 90 is commonly available in both motorized and non-motorized versions. The header 80 is mounted in front of the body 90 and cuts crop stalks using a cutter. Several crop lifters are mounted in front of the header 80 with auxiliary support brackets. During cutting, the lifters support lodged crops, keeping them upright and ensuring the cutting blade applies evenly to the crop, thus improving cutting quality.

[0024] See Figure 3 The improvement of the rice lifter in this embodiment compared with the traditional rice lifter is that the rear sidewalls of the upper cover plate 10 and the lower cover plate 20 are set as forward inclined surfaces 70, and the angle of the forward inclination of the inclined surface 70 can be set to 15° to 30°.

[0025] In addition, in this embodiment, the height of the first bracket 40 is less than the height of the second bracket 50.

[0026] Furthermore, in this embodiment, the outer surfaces of both the upper cover plate 10 and the lower cover plate 20 are coated with an anti-rust coating to improve their service life.

[0027] See Figure 4The improvement of the grass-blocking stalk cutter in this embodiment compared to the traditional stalk cutter lies in the fact that, among the several stalk lifters located in front of the cutter head 80, the outer edge stalk lifters can be replaced with the improved stalk lifters of this embodiment, while the remaining stalk lifters can use the original stalk lifters. In this embodiment, the improved stalk lifters are installed at the outer edge in front of the cutter head 80, and an inclined opening is formed between the inclined surface 70 and the cutter head 80. This inclined opening expands from the inside out, thereby increasing the cross-sectional area of ​​the discharge channel and reducing the likelihood of grass clippings and stems clogging the gap between the cutter head and the stalk lifters.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rice-lifting device, comprising an upper cover plate (10), a lower cover plate (20), a connecting seat (30), a first support (40), a second support (50), and at least one rice-lifting wheel (60), wherein the connecting seat (30) is sleeved on the front end of the upper cover plate (10) and the lower cover plate (20), and the connecting seat (30) is fixedly connected to the upper cover plate (10) and the lower cover plate (20), and the first support (40) and the second support (50) are both disposed on the upper cover plate (10) and the lower cover plate (20). Between (20), and the top and bottom of the first bracket (40) are respectively connected and fixed to the middle section of the upper cover plate (10) and the middle section of the lower cover plate (20) by fasteners, the top and bottom of the second bracket (50) are respectively connected and fixed to the rear section of the upper cover plate (10) and the rear section of the lower cover plate (20) by fasteners, and a load sheave (60) is installed under both the upper cover plate (10) and the lower cover plate (20), or a load sheave (60) is installed only under the upper cover plate (10), characterized in that, The rear sidewalls of the upper cover plate (10) and the lower cover plate (20) are configured as forward-inclined slopes (70).

2. A grain lifter according to claim 1 wherein: The angle at which the inclined plane (70) tilts forward is set to 15° to 30°.

3. A grain lifter according to claim 1 wherein: The height of the first bracket (40) is less than the height of the second bracket (50).

4. A lifting handle according to any one of claims 1 to 3, wherein: The outer surfaces of both the upper cover plate (10) and the lower cover plate (20) are coated with an anti-rust coating.

5. A grass cutter / dryer that is not prone to clogging, comprising a vehicle body (90) and a cutting platform (80) mounted in front of the vehicle body (90), characterized in that, It also includes the rice lifter according to any one of claims 1 to 4, wherein the rice lifter is installed at the outer edge in front of the cutter head (80), and an inclined opening is formed between the inclined surface (70) and the cutter head (80).

6. A machine according to claim 5, wherein: The inclined opening expands from the inside out.

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